Kurdish militants launched a car bomb attack on a police complex in southeast Turkey’s Diyarbakir province overnight, killing five people and wounding 39, the provincial governor’s office said on Thursday.

Kurdistan Workers Party (PKK) militants carried out the attack on a police station and police accommodation in Diyarbakir’s Cinar district around 11:30 pm (2130 GMT), it said.

The mainly Kurdish region has been hit by a surge in violence since a two-year ceasefire between the state and the PKK collapsed last July, reigniting a conflict which has killed more than 40,000 people over three decades.

Coinciding with the bomb attack, PKK fighters opened fire with rifles on another security complex in the area, triggering a firefight in which there were no reported casualties, the statement said.

It said two police relatives were killed in the car bomb attack on the building, along with three people whose bodies were pulled from the wreckage. The wounded were being treated in nearby hospitals.

The PKK, designated a terrorist group by Turkey, the United States and the European Union, says it is fighting for autonomy and greater rights for Kurds in the NATO-member country.